Motor-actuated locking device for automobiles



R/D. WHERRYIv MOTOR ACTUATED LOCKING DEVICE FOR AUTOMOBILES.

APPLICATION FILED MAY 3. |919.

1,322,171. PatentedN0v.18,1919.

2 SHEETS-SHEET l.

wil- I N. UQ m l R. D. WHERRY.

MOTOR ACTUATED LOCKING DEVICE FOR AUTOMOBILES. APPLICATION FILED MAYa.19:9.

1,322,171. Patented Nov.18,1919.

2 SHEETS-SHEET Z.

ROBERT D. WHEEEY, E NEcHEs, TEXAS.

` MoToE-AcTUATED LoCKINGDEVICE Eon AUTOMOBILES.

Specification of L etters Patent. Patented Nov". 1 8, '1919.

Application filed may a, 1919. serial 110.2911578.

To all whom it may concern Be it known that I, ROBERT D. WHEREY, acitizen of the United States, residing at N eches, 'in the county ofAnderson and State of Texas, have invented certain new and usefulImprovements in Motor-Actuated Locking'Devices yfor Automobiles, ofwhich the following is a specification, reference being had to theaccompanying drawings.

This invention relates toa motor actuated locking device forautomobi1es,'and an object of the invention is to provide ailockingdevice of this kind including means to be set Y and locked and means tobe actuated by the era le, it is obvious that as motor driven shaft 0fthe automobile, whereby when an unauthorized person endeavors to movethe car by .pushing the same, or op` erating the shaft-by the motor, themotor driven shaft will actuate parts ofthe locking mechanism, therebypreventing the. driving shaft from continuing its operations, hencepreventing the unauthorized person from appropriating the automobile forpersonal use.

A further object of the invention is the provision of a lockingmechanism, which may operate when the driving shaft is operating thedriving wheels forwardly, or when operating them todrive the? vehiclevrearwardly. While the design and construction atepresent illustrated andset forthI is deemed prefa result of a reduction of the invention to amorefpractical form for commercial purposes, the in# vention may besusceptible to changes, and, the right to these changes is claimed,provided they are comprehended within the scope o'f what is claimed.

The invention comprises further features and combination of parts aswill be hereinafter set forth, shown in the drawings and claimed. 7

Tn the drawings: lFigure 1 is a plan view of a portion of an automobilechassis, and the rear axle c-asing, showing the same broken away,illustrating the differential, and' also illustrating the motor drivenshaft, and the locking mechanism applied thereto in plan.

YFig. 2 is a sectional view through the same showing the locking partsthereof in their normal positions.

Fig. 3 is a sectional viewshowing certain ,1. of the parts as havingbeen moved, to lock/ the driving shaft of the automobile.

faces of the clutch members 13 'lever 33, which carries the be locatednear the ,seat of the i and when moved toits forward or rear p'osi-v 105tremebackward position,

Fig. 4 is an enlarged detail -viewA of the 'locking mechanism.

Fig. 5 is a sectional View on line 5 5 of Fig. 1, showing the curvatureof the partl 30, whereby rits teeth vmay mesh with the teeth of the gear20.

Referring to the drawings, portion of the chassis or frame, 2 the rearaxle casing, and 3 ,the differential casing, which is broken away,showing the rear axle 4" and the differential wheels 6 are mounted rearend of which is mounted in bearings of the dilfeirential casing and in,coperation with the differential.

An abutment disk 81s secured upon the I thereon. The keyed connectionsare designated by the numeral 15. A coil spring 1'6 is interposedbetween the clutch member 14 and the abutment disk 11.

and 14 are recessed, as ,at 17, to be engaged by the coil springs 10 and16. A The clutch members 13 and 14 have clutch hubs 18V and 19, and

mounted and threaded on the drive shaft 1 designates a I gears 5.Supporting upon the rear axle, and 7 denotes the motor driven shaft, the

the drive shaft by The remote 7 is a central clutch member 20, providedwith opposite clutch hubs 2l and 22 vided with clutch teeth 23. which ispivoted at 32 to the frame, has a slot and pin connection with a lbellcrank leverf3l, which is pivoted at 31". This bell crank lever 31av is,in turn, connected tothe gear rack 30 at its rear end. The'other end ofthe lever. 31 is connected toa link 34,` which in'turn is connected tothe lever 35. This lever 3-5 is propivoted on the frame or chassis, asat 36, and

its short arm iS connected pivotally, at 37, to the link 34. This lever35 is designed to tion, any suitable means (not shown) may be employedfor locking the lever `in such position. Q

automobile, j

When the leverl 35 is moved toits eX- and is locked by (not shown), thefgear clutch member 20 and any suitable means rack will engage' the ingwith the drive shaft 7. Should motion be imparted to the shaft 7, sayKfor instance, in a direction to operate the wheels forwardly, either byoperating the motor (not shown) of the vehicle or by pushing thevehiclev manually, the clutch member 20 will move forwardly owing to itsthreaded connection with the shaft, until the clutch member 24 willengage the clutch member 26, therebywvinding the spring 28 until theVclutch teeth 23 engage the clutch teeth 18 of the clutch member 13, andowing to the abutment disk 8, the shaft 7 will be locked against furtherrotation. The drive shaft -7may be locked when it is rotated in the`opposite direction or reversed, owing to t-he fact that the clutchmember 20 will feed rearwardly owing t'o its threaded connections, andthe clutch members between 20 and 14 will coact in the same manner as'described in regard/to' the clutch members 24 -and 26, and 18 and 23.However, to release the driving shaft, the lever 35 maybe reversed, thatis operated whereby the gear 25 rack may be moved to release the rclutchmember 20. Owing to the springs 28 under tension, theclutch hubs 18 and21 will dis-k engage, as will also the clutch members 24 and 26, untilthe clutch member 2Oj reaches its normal position.v By a mechanism ofthis kind, it is possible to lock an automobile, and should it bediscovered that the automobile is not properly'parked according to thecity requirements, the automobile may be shoved manually, until it isparked ac' cOrding to the requirements.

The lever 37 is provided with a locking device, the bolt 37a of which,when disengaged'from between the teeth at the right, as shown in Fig. 4,will automatically enf' gage the teeth at the left of the rack,'when thelever 37 is oscillated rearwardly/ This bolt 37 will remain inengagement between the teeth at the. left of the rack, and can not bedisengaged therefrom until a key has been inserted in the lock and thebolt with-- obvious that any other suitable lockingmeans may be used onthe lever, so long as 1t vcarries out the operation as above set lforth.

The gear rack 30 is also housed by an extension 30a of the casing 30h,which forms an integral part of the drive shaft casing andthe dierentialcasing 3, thereby pre- 'venting the gear rack from being manuallydisconnected from the central clutch member 20. This gear rack 30 iscurved concentrically with relation to the clutch gear.

member 20, so that the teeth ofthe gear rack will mesh with a number ofthe teeth of the .sions 30, which are mounted in guides 30d,

clutch gear member 20, in order to prevent accidental disconnecting ofthe gear rack and the clutch member 20, when in gear. rlhis gear rack 30is provided with eXtenso that the gear rack 30 can move toward textension of the casing in other ways, without departing from the spiritof the invention. Also the casing 30b can be made in two parts orotherwise constructed, so as to be applied for the purpose of inclosingvari- Aous parts of the shaft lock.

The invention having been set forth, what is claimed as new andusefulis:

1. In a locking mechanism for automobiles, the combination with a motordriven shaft, abutment disks mounted thereon, clutch members keyed tothe shaft but capable of Asliding thereon, yieldable means between theclutch members and the abutment disks, `a major clutch member threadedon the shaft intermediate said clutch members andy adapted'to cooperatewith Aeither 95 one for lockingthe shaft, when the shaft is rotated, andmeans for locking the major clutch member, so that lit will feeddaxially in one direction or the other on the shaftI when the shaft isrotated. 10d 2. In a locking mechanism for automobiles, the combinationwith a motor driven shaft, abutment disks mounted thereon, clutchmembers keyed to the shaft but ca pable of sliding thereon, `yieldable.means Vbetween the clutch members and the abutment disks, a maj orclutch member threaded on the shaft intermediate said clutch members andadaptedy to coperate with either one for locking the shaft, when theshaft is rotated, means for locking the major clutch member, so that itwill feed axially in one direction or the other on theshaft when theshaft is rotated, and means put'under tension when the major clutchmember and one .115 of the first clutch members approach each other to,return the major clutch member to itsnormal position when released.

3. In a locking mechanism for automobiles, the combination with a motordriven shaft, abutment disks mounted thereon, clutch members keyed tothe shaft but capable of sliding thereon, yieldable means between theclutch members and the abutment disks, a major clutch member threaded126 on the shaft intermediate said clutch members and adapted tocoperate with either one for locking the shaft,- when the shaft isrotated, means for locking the major clutch member, so that it k'willfeed axially 130 in one direction or the other on the shaft When theshaft is rotated, and means put under tension When the major clutchmember and one of the rst clutch members approach each other Vto returnvthe major clutch member to its normal position when released, saidtensioning means having -means `cooperating With the major clutch memberto hold the tensioning means' Wherevby it can be pnt under tension, whenthe- 10 major clutch member is held against movement With the shaft.

In testimony whereof I hereunto aix my signature in the presence of twoWitnesses.

` ROBERT D. WHERRY. Witnessesz.

J. D. JAMESON, D. B. BROWN.

